55228222830 has 128 divisors (see below), whose sum is σ = 161161643520. Its totient is φ = 11937853440.

The previous prime is 55228222823. The next prime is 55228222853. The reversal of 55228222830 is 3822282255.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 152479 + ... + 365658.

It is an arithmetic number, because the mean of its divisors is an integer number (1259075340).

Almost surely, 2^55228222830 is an apocalyptic number.

55228222830 is an abundant number, since it is smaller than the sum of its proper divisors (105933420690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55228222830 is a wasteful number, since it uses less digits than its factorization.

55228222830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518194.

The product of its (nonzero) digits is 153600, while the sum is 39.

The spelling of 55228222830 in words is "fifty-five billion, two hundred twenty-eight million, two hundred twenty-two thousand, eight hundred thirty".